Effect of soil on leakage rates in water distribution pipes
This paper describes an experimental and analytical study that examined the effects of soil on leakage rate from defective water pipes. An experimental model was designed and constructed to simulate idealized cracks in defective water pipes discharging into a bed of granular materials. Tests were ru...
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-08-01
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| Series: | Water Practice and Technology |
| Subjects: | |
| Online Access: | http://wpt.iwaponline.com/content/18/8/1775 |
| _version_ | 1797689414097305600 |
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| author | Majed Omar A. Alsaydalani |
| author_facet | Majed Omar A. Alsaydalani |
| author_sort | Majed Omar A. Alsaydalani |
| collection | DOAJ |
| description | This paper describes an experimental and analytical study that examined the effects of soil on leakage rate from defective water pipes. An experimental model was designed and constructed to simulate idealized cracks in defective water pipes discharging into a bed of granular materials. Tests were run on three different materials: LBS-B, LBS-A, and glass ballotini with different characteristics. The results reveal that the presence of bedding material surrounding a leaking pipe causes a significant change in the leakage rate versus free flow conditions. The bedding has a greater impact on larger defect openings. There was a significant drop in the values of the coefficient of discharge (Cd) when the pipe discharged into a soil bed versus free flow conditions; this value was 38% lower for coarse particles and 70% for finer particles. The results also showed that high leakage rates could flow from the defective pipe without fluidization of the bedding materials. An analytical model based on the method of fragments was presented to predict the leakage rate after which the predicted results were compared with values measured experimentally.
HIGHLIGHTS
An analytical model has been presented to predict the leakage rate, in the presence of soil, that provides reasonable estimates of the leakage rate.;
Soil with different characteristics (permeability, particle size, particle shape, and bed height) was tested.;
Influence of the surrounding soil on the hydraulic behaviour of leakage was examined.; |
| first_indexed | 2024-03-12T01:45:22Z |
| format | Article |
| id | doaj.art-591c0cbdea154c8499d04ef1b47817c2 |
| institution | Directory Open Access Journal |
| issn | 1751-231X |
| language | English |
| last_indexed | 2024-03-12T01:45:22Z |
| publishDate | 2023-08-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Practice and Technology |
| spelling | doaj.art-591c0cbdea154c8499d04ef1b47817c22023-09-09T08:41:43ZengIWA PublishingWater Practice and Technology1751-231X2023-08-011881775179010.2166/wpt.2023.121121Effect of soil on leakage rates in water distribution pipesMajed Omar A. Alsaydalani0 Civil Engineering Department, Umm AL-Qura University, Makkah, K.S.A This paper describes an experimental and analytical study that examined the effects of soil on leakage rate from defective water pipes. An experimental model was designed and constructed to simulate idealized cracks in defective water pipes discharging into a bed of granular materials. Tests were run on three different materials: LBS-B, LBS-A, and glass ballotini with different characteristics. The results reveal that the presence of bedding material surrounding a leaking pipe causes a significant change in the leakage rate versus free flow conditions. The bedding has a greater impact on larger defect openings. There was a significant drop in the values of the coefficient of discharge (Cd) when the pipe discharged into a soil bed versus free flow conditions; this value was 38% lower for coarse particles and 70% for finer particles. The results also showed that high leakage rates could flow from the defective pipe without fluidization of the bedding materials. An analytical model based on the method of fragments was presented to predict the leakage rate after which the predicted results were compared with values measured experimentally. HIGHLIGHTS An analytical model has been presented to predict the leakage rate, in the presence of soil, that provides reasonable estimates of the leakage rate.; Soil with different characteristics (permeability, particle size, particle shape, and bed height) was tested.; Influence of the surrounding soil on the hydraulic behaviour of leakage was examined.;http://wpt.iwaponline.com/content/18/8/1775fluidizationleakage ratemethod of fragmentsoilwater pipes |
| spellingShingle | Majed Omar A. Alsaydalani Effect of soil on leakage rates in water distribution pipes Water Practice and Technology fluidization leakage rate method of fragment soil water pipes |
| title | Effect of soil on leakage rates in water distribution pipes |
| title_full | Effect of soil on leakage rates in water distribution pipes |
| title_fullStr | Effect of soil on leakage rates in water distribution pipes |
| title_full_unstemmed | Effect of soil on leakage rates in water distribution pipes |
| title_short | Effect of soil on leakage rates in water distribution pipes |
| title_sort | effect of soil on leakage rates in water distribution pipes |
| topic | fluidization leakage rate method of fragment soil water pipes |
| url | http://wpt.iwaponline.com/content/18/8/1775 |
| work_keys_str_mv | AT majedomaraalsaydalani effectofsoilonleakageratesinwaterdistributionpipes |